:root{--bg:#fbf7f0;--card:#ffffff;--ink:#33312e;--muted:#7a756d;--accent:#e8915b;--accent2:#4a7c6f;--line:#ece4d8;--good:#3f7d62;--warn:#b06a3b}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px}
a{color:var(--accent2);text-decoration:none}a:hover{text-decoration:underline}
header.site{background:var(--card);border-bottom:1px solid var(--line)}
.wrap{max-width:880px;margin:0 auto;padding:0 18px}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;flex-wrap:wrap;gap:8px}
.logo{font-weight:800;font-size:1.15rem;color:var(--ink)}
.logo small{display:block;font-weight:500;font-size:.72rem;color:var(--muted)}
nav.top a{margin-left:14px;font-size:.9rem;color:var(--muted)}
main{padding:26px 0 10px}
h1{font-size:1.6rem;line-height:1.35;margin:.2em 0 .5em}
h2{font-size:1.25rem;margin:1.6em 0 .6em;padding-bottom:.2em;border-bottom:2px solid var(--line)}
h3{font-size:1.06rem;margin:1.2em 0 .4em}
.lead{font-size:1.05rem;color:#54504a}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:16px 0}
.hero{background:linear-gradient(135deg,#fff,#fdf3e9);border:1px solid var(--line);border-radius:18px;padding:22px;margin:8px 0 20px}
table{width:100%;border-collapse:collapse;margin:10px 0;font-size:.93rem;background:var(--card)}
th,td{border:1px solid var(--line);padding:8px 10px;text-align:right}
th{background:#f4ece1;color:#5a554d;font-weight:700}
td.l,th.l{text-align:left}
tr:nth-child(even) td{background:#fcf8f2}
.badge{display:inline-block;font-size:.72rem;padding:2px 8px;border-radius:999px;background:#f0e7d8;color:#6a6359;margin-left:6px}
.warn{color:var(--warn)}
.good{color:var(--good);font-weight:700}
.src{font-size:.8rem;color:var(--muted)}
.cta{background:#fdf0e5;border:1px solid #f0d8c2;border-radius:14px;padding:16px 18px;margin:20px 0}
.cta h3{margin-top:0}
.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;padding:10px 16px;border-radius:10px;margin:6px 8px 6px 0}
.btn:hover{text-decoration:none;opacity:.92}
.btn.alt{background:var(--accent2)}
ul.tight{margin:.4em 0;padding-left:1.2em}ul.tight li{margin:.25em 0}
.note{font-size:.85rem;color:var(--muted);background:#f7f1e8;border-left:3px solid var(--accent);padding:8px 12px;border-radius:0 8px 8px 0;margin:12px 0}
footer.site{margin-top:34px;background:#f3ece1;border-top:1px solid var(--line);color:var(--muted);font-size:.84rem}
footer.site .wrap{padding:18px}
.chips a{display:inline-block;background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 12px;margin:4px 6px 4px 0;font-size:.88rem}
.calc input{font-size:1.1rem;padding:8px 10px;border:1px solid var(--line);border-radius:8px;width:160px}
.calc button{font-size:1rem;padding:9px 16px;border:0;background:var(--accent);color:#fff;border-radius:8px;font-weight:700;cursor:pointer}
@media(max-width:560px){table{font-size:.84rem}th,td{padding:6px 6px}h1{font-size:1.35rem}}